Physical model study for evaluation of jet impact on sediment flushing
| العنوان: | Physical model study for evaluation of jet impact on sediment flushing |
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| المؤلفون: | Ahmad Abdipour, Hassan Ahmadi, Seyed Abbas Hoseyni |
| المصدر: | Građevinar Volume 70 Issue 09. |
| بيانات النشر: | Croatian association of civil engineers, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | ispiranje pod tlakom, fizikalni model, uklanjanje nanosa, brzina mlaza, promjer mlaznice, pressure flushing, physical model, sediment scouring, jet velocity, nozzle diameter |
| الوصف: | Ispiranje pod tlakom jedna je od metoda koje se primjenjuju za uklanjanje nanosa iz akumulacija. U ovom se istraživanju koriste uronjeni mlazovi u zoni ispred brane. Na fizikalnom modelu istražen je utjecaj karakteristika mlaza (promjer mlaznice, brzina mlaza i protok) i izlaznih parametara akumulacije (razina i protok temeljnog ispusta) na ispiranje sedimenta. Učinkovitost mlazova određena je uspoređivanjem ispiranja nanosa pod raznim uvjetima: jednom uz korištenje mlazova i jednom bez njih. Učinkovitost ispiranja nanosa varirala je od 0,9 do 3,1 kod ispitivanja s mlazom, te između 0,1 i 0,3 za kontrolna ispitivanja (bez mlaza). Pressure flushing is one of the methods that are used for removing sediments from reservoirs. In this research, submerged jets were used in front of the dam. A physical model was developed to study the influence of jet characteristics (nozzle diameter, jet velocity, and jet discharge) and reservoir output parameters (bottom outlet level and discharge) on the sediment release. The efficiency of the jets was established by comparing the sediment scour obtained under different conditions: once with jets and once without jets. The sediment scouring efficiency ranged between 0.9 and 3.1 for jet experiments, and between 0.1 and 0.3 for reference tests (without jets). |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 1333-9095 0350-2465 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=od_______951::40fad54f454ddd9ddfb82845726725ee https://hrcak.srce.hr/207202 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.od.......951..40fad54f454ddd9ddfb82845726725ee |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13339095 03502465 |
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